CVE-2025-38393
"Linux Kernel NFSv4/pNFS Race Condition Vulnerability"
Description
In the Linux kernel, the following vulnerability has been resolved: NFSv4/pNFS: Fix a race to wake on NFS_LAYOUT_DRAIN We found a few different systems hung up in writeback waiting on the same page lock, and one task waiting on the NFS_LAYOUT_DRAIN bit in pnfs_update_layout(), however the pnfs_layout_hdr's plh_outstanding count was zero. It seems most likely that this is another race between the waiter and waker similar to commit ed0172af5d6f ("SUNRPC: Fix a race to wake a sync task"). Fix it up by applying the advised barrier.
INFO
Published Date :
July 25, 2025, 1:15 p.m.
Last Modified :
July 25, 2025, 3:29 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Public PoC/Exploit Available at Github
CVE-2025-38393 has a 1 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-38393.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-38393 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-38393
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
DSA and DLA for Debian last 14 days
Python
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-38393 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-38393 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jul. 25, 2025
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: NFSv4/pNFS: Fix a race to wake on NFS_LAYOUT_DRAIN We found a few different systems hung up in writeback waiting on the same page lock, and one task waiting on the NFS_LAYOUT_DRAIN bit in pnfs_update_layout(), however the pnfs_layout_hdr's plh_outstanding count was zero. It seems most likely that this is another race between the waiter and waker similar to commit ed0172af5d6f ("SUNRPC: Fix a race to wake a sync task"). Fix it up by applying the advised barrier. Added Reference https://git.kernel.org/stable/c/08287df60bac5b008b6bcdb03053988335d3d282 Added Reference https://git.kernel.org/stable/c/1f4da20080718f258e189a2c5f515385fa393da6 Added Reference https://git.kernel.org/stable/c/864a54c1243ed3ca60baa4bc492dede1361f4c83 Added Reference https://git.kernel.org/stable/c/8846fd02c98da8b79e6343a20e6071be6f372180 Added Reference https://git.kernel.org/stable/c/8ca65fa71024a1767a59ffbc6a6e2278af84735e Added Reference https://git.kernel.org/stable/c/c01776287414ca43412d1319d2877cbad65444ac Added Reference https://git.kernel.org/stable/c/e4b13885e7ef1e64e45268feef1e5f0707c47e72